This system is designed in such a manner to easily understand the functionality of the Connecting Rod, Cranks., Rocker Arm. The Length of Connecting Rod is 250mm, Length of Cranks 100 mm, Length of Rocker Arm, 200mm Mechanism Frame 300mm. Rust proof Alloy Wheel is provided with handle to operate the arrangement and have scientific study. The whole setup is mounded on the Wooden Board duly covered with Plastic beading. This model also comes in motorised version with digital parameters.Model-BSPIL-DYN-04016 (a).